"Feeling so much love for a little life that I delivered into world on Monday 27 January 2020 at 6:46pm," the elated reality TV star wrote on Instagram alongside a photo holding her gorgeous son.
"A healthy baby boy weighing 3680g (8lbs). Micah Harper Johnson."
In addition to their newborn, Michah and Milly shared a two-year-old son named Julian.
Milly's ex tragically died on December 28 after allegedly taking a mixture of substances. The devastated 23-year-old announced the heart-wrenching news on social media, admitting she was "struggling to put into words how sad and heartbreaking this is".
"It is so sad and unbelievably surreal that I am making this post. On the 28 December 2019 Micah Patrick Downey passed away," she captioned an Instagram photo of Micah smiling while holding his guitar.
"I am struggling to put into words how sad and heartbreaking this is. I just hope he is at peace wherever he is and that he will always be watching over his babies.
Milly and Micah rose to fame after starring on Bride and Prejudice in 2019. Although they tried to work on their relationship and sort through their issues, they split before walking down the aisle.
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